【摘要】 视频处理程序设计的过程中,以往开发人员要在处理硬件设备和数据格式差异上花费大量的精力,且程序不具有可复用性,而利用微软提供的Directshow视频处理通用平台,封装了硬件差异,且实现了处理过程的模块化。文中在介绍Directshow视频处理中的运用的基础上,重点结合COM技术介绍了DirectshowFilter模块化设计方法和步骤,对其中所蕴涵的组件对象概念做了详细的剖析。并以变换过滤器为例,演示了实现过程,给出了关键代码的示例,指出Directshow是一项有前景的视频处理技术。更多还原

【Abstract】 In the program design of video process, anciently the programmer should deal with the differences of hardware and format of data, and the program can not be reused. But using the Microsoft’s Directshow, common video process platform, encapsulated the differences and realized the process blocking. In this article, on the basis of the introduction of the using Directshow in the video process, discusses the design method and approach of Directshow Filter module based on COM, analyses the concept of module object contained in it. And using the Transform Filter as example, shows the process of realization, gives the pivotal codes. Point out that Directshow is a useful technology of video process.更多还原